No bark, growl, or bite is as nearly as hurtful as human cruelty. Dogs might behave that way instinctively when they sense a threat, but humans most often hurt these animals on purpose simply because they can.
As if leaving a family dog isn’t hurtful enough, some people go even further by leaving pups in bags, without food, water, or even air.
Louie’s story is heartbreaking, as he was not only betrayed by his family, but thrown off a bridge with tape on his mouth, so no one could hear his cry for help.